JP3525455B2 - Disk unit - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disk device suitable for application to, for example, a CD player, a CD-ROM drive, etc., and in particular, power loading and / or ejecting a disk tray from the disk device body. Regarding things.

[0002]

2. Description of the Related Art Conventionally, in a CD-ROM drive in which a disc, which is a CD-ROM, is power-loaded and / or ejected from a disc device main body by a disc tray, a power-loading and / or power-ejecting drive is used. The gear motor and the lock mechanism for locking the disc tray at the loading position in the disc device body were separately attached.

[0003]

SUMMARY OF THE INVENTION Therefore, the conventional CD-
In the ROM drive, the number of parts and the number of assembling steps are large, resulting in high cost.

Further, in particular, when ejecting the disc tray, it is necessary to first unlock the disc tray by the lock mechanism and then drive the gear motor to eject the disc tray, which is troublesome to control. In addition, there is a problem that the disc tray cannot be ejected quickly.

Conventionally, in a CD player, there is a CD player which locks the disc tray at a loading position in the disc apparatus main body by a gear motor for loading and driving the disc tray, but there is a power failure or an electric system failure. There was a problem that the emergency eject, which ejects the disc tray manually, cannot be performed in an emergency when the power cannot be turned on.

The present invention has been made to solve the above problems, and uses a gear motor for power loading and / or power ejecting a disc tray at the loading position in the disc device main body. It is an object of the present invention to provide a disk device that can be locked on a disk and that can also perform an emergency eject.

[0007]

Claim disk apparatus of the present invention for achieving the above object, according to an aspect of 1, the recording and / or disc tray for loading and ejecting the disk for reproducing to the disk apparatus body If, provided on the disk tray, and a parallel rack loading direction and the eject direction, is attached to the disk device body, a pinion configured to be freely engaged and disengaged with respect to said rack, said disk device A disc drive equipped with a gear motor for rotating and driving the pinion mounted in the main body, comprising:
State that the locking teeth at the loading position of the rack wrap around the end of the rack on the eject direction side at a substantially right angle
The gearmotor and the pinion
A slider that slides and slides
Urging force for slidingly urging the pinion into the engagement direction.
Steps are provided on the slider, and the disc device
By being operated by operating means from outside the unit,
In order to disengage the pinion from the rack ,
Emergen that slides the idler against the biasing means
A sea eject operation unit is provided . Also books
According to claim 2 of the disk device of the invention, recording and / or reproducing
The disk for loading into the main body of the disk device.
Disc tray to eject and eject, and the disc above
Installed on the tray, loading direction and eject
Mounted in a rack parallel to the
It is attached so that it can be engaged with and disengaged from the rack.
Mounted in the above-mentioned disk device body with the pinion made
And a gear motor that drives the pinion to rotate.
In the equipped disc device, the disc tray
The locking teeth at the mounting position
It is formed in a state that it wraps around the end on the cutting direction side at a substantially right angle
The pinio driven by the gear motor.
The swing arm is attached so that
And the swing arm is attached to the rack to the pinion.
An urging support means for urging rotational movement in the meshing direction is provided, and
Operation means formed from the outside of the disk device.
The swing arm is moved by the biasing means in order to disengage the pinion from the rack.
Emergency eject operation to rotate against force
It has a section .

[0008]

According to the disk device of the present invention having the above-described structure, the disk tray is provided around the rack parallel to the loading direction and the eject direction at a right angle to the end of the rack on the eject direction side. Since the pinion driven by the gear motor installed in the disk device main body is urged to move in the meshing direction to the rack by the biasing means, the rack is driven by the pinion to drive the disk tray. when power loading, so as to wrap the pinion to the lock teeth of the rack, with the gear motor, in the disk apparatus capable locks the disk tray in the loading position of the disc apparatus body, Giamo
The slider to which the switch and pinion are attached and slide
The pinion is attached to the rack by sliding and urging the urging means.
Energize slidingly in the meshing direction or rotate with a gear motor.
The driven pinion is rotatably mounted and rocked.
The swinging arm is rotated and biased by the biasing means, and the pinio
Since it is biased to rotate in the direction of engagement with the rack,
Emergency by operating means from outside the disk device
・ When the eject operation part is operated, the slider or swing
Arm is slidably and rotational operation against the biasing means, thereby disengaging the pinion from the locking teeth of the rack, the emergency-eject can line Ukoto.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will now be described with reference to a CD player and a CD-ROM.
An embodiment applied to a disk device such as a drive will be described with reference to the drawings.

First, a first embodiment of the disk device will be described with reference to FIGS.

As shown in FIGS. 1 and 2, this disk device records and / or reproduces an optical disk such as a CD or a CD-ROM, or a disk 1 such as a magneto-optical disk. A center hole 1a is formed.

Next, a horizontally elongated opening 2a is formed at the front end of the disk device main body 2 formed in a flat box shape, and the disk tray 3 is guided from this opening 2a by a guide mechanism (not shown). , And is configured to be horizontally loaded and ejected in the directions of arrows a and b.

Next, on the upper surface of the disc tray 3, there is formed a substantially circular recess 4 in which the disc 1 is mounted.
The disc 1 is configured to be horizontally placed in the recess 4. An opening 5 is provided on the bottom surface of the recess 4 from the center to the end on the arrow a direction side.

As shown in FIG. 1, a disk table driven by a spindle motor, an optical pickup driven by a linear voice coil motor, and a disk above and below the disk tray 3 loaded in the disk device body 2. A clamper (neither is shown) is attached so as to be vertically movable.

Next, a rack 7 is provided on one side of the lower portion of the disc tray 3 in parallel with the directions of arrows a and b which are the loading direction and the ejecting direction.

A locking tooth 7a is formed at the end of the rack 7 on the side of the arrow b, which is the eject direction, and extends continuously from the rack 7 at a substantially right angle.

Next, a slider 8 is attached to the rack 7 at a position near the rack 7 on the side of the opening 2a in the disk device body 2.
Is attached slidably in the directions (arrows c and d directions) perpendicular to the lengthwise directions of arrows a and b.
The slider 8 is urged to move in the direction of arrow c on the rack 5 side by a tension coil spring 9 which is an urging means.

A gear motor 10 and a pinion 11 which is an output gear thereof are mounted on the slider 8, and the pinion 11 is meshed with the rack 7 in the direction of arrow c.

That is, the slider 8 causes the pinion 11 to move.
Are the directions of engagement and disengagement with respect to the rack 7.
The tension coil spring 9 urges the pinion 11 to move in the direction of arrow c, which is the direction of engagement with the rack 7.

As shown in detail in FIGS. 3 to 7, the slider 8 is mounted on the chassis 13 in the disk device body 2, and the slider 8 is placed between the parallel guides 14 of the chassis 13 in the directions of arrows c and d. It is slidably attached to.

Both ends of the tension coil spring 9 are hung between a pair of spring locking portions 15 and 16 formed integrally with the slider 8 and the chassis 13, and the tension coil spring 9 causes the slider 8 to move in the direction of arrow c. The spring locking portion 15 of the slider 8 is configured to come into contact with the stopper 17 of the chassis 13 in the direction of arrow c to be regulated in position by being urged to move.

Then, the gear motor 10 is placed on the slider 8.
A DC motor 18, which is a drive source of the, and a gear train 19 that drives the pinion 11 to rotate forward and backward,
A worm 19a and a worm wheel 19b are used in the first stage of the gear train 19.

The slider 8 is constructed as an emergency eject means, and the slider 8
The emergency eject operating portion 8a is formed integrally with the arrow c, d and is inclined at an angle of about 45 ° and is raised up integrally.

Next, the operation of the first embodiment of the disk device configured as described above will be described.

First, in the ejected state shown in FIG. 2, the pinion 11 is moved to the rack 7 by the tension coil spring 9 in the direction of arrow c.
Although they are engaged from the direction, at this time, there is a sufficient gap between the spring locking portion 15 and the stopper 17 of the slider 8 shown in FIG.

Next, at the time of loading, the disc 1 is horizontally placed in the recess 4 of the disc tray 3 in the eject state shown in FIG. 2, and then a loading switch (not shown) is turned on.

Then, the DC motor 18 of the gear motor 10
Is driven to rotate in the normal direction, the pinion 11 is driven to rotate in the direction of arrow e in FIG. 2 via the gear train 19, and the rack 7 is driven in the direction of arrow a by the pinion 11. Then, as shown in FIG. 1, the disc tray 3 is power-loaded in the disc device main body 2 from the direction of arrow a.

When the disc tray 3 is loaded to the loading position, the slider 8 is moved in the direction of arrow c by the moving biasing force of the tension coil spring 9 in the direction of arrow c, as shown in FIGS. And the pinion 11 moves from the rack 7 to the locking tooth 7a by the arrow g.
Wrap around in the direction. Then, after this, the DC motor 18 is stopped by a loading completion detection switch (not shown).

At this time, the spring locking portion 15 of the slider 8 shown in FIG. 3 is brought into contact with the stopper 17 in the direction of arrow c to regulate the position of the slider 8.

Then, the eject force of the disc tray 3 is charged in the emergency eject spring 20 shown in FIG. 2 by the disc tray 3 pulled in the direction of arrow a to the loading position.

At this time, the locking teeth 7a are wrapped around the rack 7 at a substantially right angle, and the gear motor 1
Since the worm 19a and the worm wheel 19b for preventing rotation of the pinion 11 are incorporated in the first stage of the gear train 19 of 0, the pinion 11 is locked by the ejecting force of the emergency eject spring 20 in the direction of the arrow b. 4 cannot be escaped from the portion 7a toward the rack 7 in the direction of the arrow f, and the meshing state with the locking tooth portion 7a of the pinion 11 is maintained, so that the disc tray 3
Remains locked in the loading position.

Therefore, the gear motor 10 can be used to lock the disc tray 3 in the loading position in the disc device main body 2.

Then, in synchronization with the power loading operation of the disc tray 3, the disc table is inserted into the opening 5 of the disc tray 3 from below and fitted into the center hole 1a of the disc 1 from below, so that the disc 1 is loaded. While floating above the disc tray 1, the disc clamper magnetically chucks the disc 1 onto the disc table from above, and the optical pickup is inserted into the opening 5 of the disc tray 3 from below, so that the disc 1
Being close to the underside of.

When the loading is completed, the disk 1 is rotationally driven through the disk table by the spindle motor by the command of the host computer and the optical pickup is driven by the linear voice coil motor in the opening 14 so that the arrows a, b are formed. The disk 1 is moved in the direction to record and / or reproduce the disc 1.

Next, at the time of ejecting, when the eject switch is turned on in the loading state shown in FIG. 1 or the eject switch (neither is shown) is turned on by a command from the host computer, first, The disc table, the optical pickup and the disc clamper are opened above and below the disc tray 3, and the disc 1 is placed in the recess 4 of the disc tray 3 again.

Then, the DC of the gear motor 10 is continued.
The motor 18 is driven to rotate in reverse, and the pinion 11 is driven to rotate in the direction of arrow h in FIGS. 1 and 4.

Then, as shown in FIG. 5, the pinion 11
The slider 8 is moved in the direction of the arrow d against the tension coil spring 9 by the rotational force of the arrow h in the direction of arrow h, and the disc tray 3 is pushed out in the direction of the arrow b by the emergency eject spring 20 to cause the pinion 11 to move.
Is pulled out from the locking tooth portion 7a onto the rack 7 in the direction of arrow f.

Then, as shown in FIG. 6, the pinion 11
Is driven to rotate in the direction of arrow h in the reverse direction, the rack 7 is driven in the direction of arrow b, and as shown in FIG. 2, the disk tray 3 is ejected from the inside of the disk device main body 2 in the direction of arrow b. . Then, when the disc tray 3 is pushed to the eject position, the DC motor 1 is pushed by the eject completion switch (not shown).
8 is stopped.

Next, Emergent During emergency eject, as shown in FIG. 7, inserted through the through hole 21 formed in the front panel 2b of the disk device body 2
Operation rod 22 which is the operation means for the Regency Eject
Then, the emergency eject operation portion 8a of the slider 8 is manually operated from the outside of the disk device in the direction of arrow a.

Then, due to the guiding action (moving force due to the pressing force component) by the emergency eject operating portion 8a, the slider 8 resists the tension coil spring 9 and the arrow d.
Is moved in the direction, the pinion 11 is disengaged from the locking tooth portion 7a in the direction of arrow d, and the lock of the disc tray 3 at the loading position is released.

Then, at that moment, as shown in FIG.
The eject force charged in the emergency eject spring 20 ejects the disc tray 3 from the loading position to a predetermined position in the direction of arrow b. Therefore, later, the disc tray 3 can be forcibly pulled out in the direction of the arrow b by a manual operation.

Next, a second embodiment of the disk device will be described with reference to FIGS.

In the gear motor 10 of the second embodiment, a DC motor 18 is fixed in the disk device body 2, and a flat gear is used as the first stage gear 24 of the gear train 19. Then, the first swing arm 28 and the second swing arm 29 are attached to the center shaft 27 of the output gear 26, which is the next stage gear, rotatably attached to the gear attachment plate 25 fixed to the DC motor 18, by arrows i, j. It is attached so that it can rotate freely. The rack 7 is formed on the lower surface of the disc tray 3 in a downward and horizontal manner, and the locking tooth portion 7a is formed substantially vertically.

The tip of the first swing arm 28 and the second swing arm 28
The pinion 11 and the intermediate gear 30 are rotatably attached to the tip of the swing arm 29, and the small diameter gear 30a of the intermediate gear 30 is constantly meshed with the output gear 26, and the pinion 11 and the large diameter gear 30b of the intermediate gear 30 are connected. It is configured such that they can mesh with each other in the directions of arrows i and j and can be disengaged.

Both ends 31a and 31b of the torsion coil spring 31 wound around the central shaft 27 are connected to the second swing arm 29 which is a movable portion, the DC motor 18 and the gear mounting plate 25.
The second swing arm 29 is urged to rotate about the central axis 27 in the direction of arrow i by being locked to a fixed part such as.

The second swing arm 29 is constructed as an emergency eject means, and this swing arm 29 has an emergency eject operation section 29.
a is formed.

Next, the operation of the gear motor 10 of the second embodiment of the disk device constructed as described above will be explained.

First, FIG. 8 shows the locked state of the disc tray 3 using the gear motor after loading the disc tray 3 into the disc device main body 2.

At this time, the pinion 11 is engaged with the locking tooth portion 7a of the rack 7 and the rotational biasing force of the torsion coil spring 31 in the direction of arrow i causes the intermediate gear 30 to move between the pinion 11 and the output gear 27. It is inserted (interrupted) from the i direction and meshed with both the pinion 11 and the output gear 26. Therefore, the pinion 11 is crimped to both the locking tooth portion 7a and the lower surface 3a of the disc tray 3, and the first swing arm 28 is kept in a tensioned state between the disc tray 3 and the central shaft 27.

Next, at the time of emergency ejection, first, as shown in FIG. 9, the operation rod 22 inserted from the through hole 21 of the front panel 2b of the disk device body 2 is inserted.
Then, the emergency eject operation part 29a of the second swing arm 29 is manually operated in the direction of the arrow a.

Then, the second swing arm 29 moves the central shaft 27
Is rotated in the direction of arrow j against the torsion coil spring 31, the intermediate gear 30 is disengaged from the pinion 11, and the rotation of the pinion 11 becomes free.

Next, as shown in FIG. 10, when the emergency eject operating portion 29a is further pushed by the operating rod 22 in the direction of arrow a, the emergency eject operating portion 29a is moved to the side surface of the first swing arm 28 by the arrow. a
From the direction, the first swing arm 28 is rotated in the direction of the arrow j, and the pinion 11 pushes the disc tray 3 in the direction of the arrow a against the emergency eject spring 20 described above. The rack 7 tries to come off from the locking step 7a in the direction of the arrow d.

Then, as shown in FIG. 11, the operating rod 22
When the emergency eject operation unit 29a is further pushed in the direction of the arrow a by means of the emergency eject operation unit 29a, the first swing arm 28 is moved by the emergency eject operation unit 29a.
Is rotated in the arrow j direction together with the second swing arm 29 around the central shaft 27 against the torsion coil spring 31, and the pinion 11 is disengaged from the locking tooth portion 7a of the rack 7 in the arrow d direction.

At this time, the rotation of the pinion 11 is already free, and the disc tray 3 can escape in the direction of the arrow a against the emergency eject spring 20, so that the pinion 11 is locked. Part 7
It can be easily detached from a in the direction of arrow d.

Then, as shown in FIG. 11, the pinion 1
At the moment when 1 is disengaged from the locking tooth portion 7a of the rack 7 in the arrow d direction, the disc tray 3 is ejected to a predetermined position in the arrow b direction by the emergency eject spring 20.

Therefore, after this, the disc tray 3 is forcibly pulled out in the direction of the arrow b by manual operation, but the gear ratio is set to be small so that the disc tray 3 can be easily pulled out in the direction of the arrow b.

According to the second embodiment, the pinion 11 and the intermediate gear 30 can freely escape in the arrow j direction against the torsion coil spring 31 in FIG. When manually loaded in the direction, the pinion 11 can escape to the rack 7 in the direction of arrow j, and the intermediate gear 30 can escape to the pinion 11 in the direction of arrow j.
Just like a one-way clutch, the pinion 11 can be run idle, and the pinion 11 and the intermediate gear 30 are not heavily loaded, and the durability is high.

Although the embodiments of the present invention have been described above, the present invention is not limited to the above embodiments and various modifications can be made based on the technical idea of the present invention.

[0059]

The disk device of the present invention constructed as described above has the following effects.

According to the first and second aspects of the present invention, a rack provided on the disc tray and parallel to the loading direction and the eject direction is provided with a locking tooth portion which is wound around the end of the rack in the eject direction side at a substantially right angle. , A pinion driven by a gear motor mounted in the disk device main body is urged to move in a meshing direction to the rack by the urging means, and the rack is driven by the pinion to power-load the disk tray. With a disk device that can lock the disk tray at the loading position in the disk device body by using the gear motor so that it goes around the locking teeth of
Because there, as in the prior art, it is not necessary to provide a locking mechanism separately, by reducing the number of parts and assembling steps by a large margin,
Cost reduction can be achieved. Then, the control at the time of eject becomes simple, and the disc tray can be ejected quickly.

Claims 1 and 2 are a gear motor and a pinion.
The slider that is attached and slid by the biasing means.
Sliding force to slide the pinion in the direction of engagement with the rack.
A pinio that is biased or rotated by a gear motor
The swing arm is attached so that
Rotate and urge the urging means to move the pinion to the rack.
Since it is urged to rotate in the meshing direction,
Emergency eject operation by operating means
When the work section is operated, the slider and swing arm are
Is sliding and rotating operation against the stage, thereby disengaging the pinion from <br/> locking teeth of the rack, the emergency-eject can line Ukoto.

According to the first aspect , the gear motor and the pinion are installed.
The attached slider is configured so that it can slide freely.
The biasing means in the direction of engagement of the pinion with the rack.
Since it is urged to move, it operates reliably and is highly reliable.
Yes.

According to a second aspect of the present invention, it is rotationally driven by a gear motor.
The pinion is rotatably attached and rocked
The swing arm is urged to rotate by the urging means, and the pinion is
Since it is urged to rotate in the direction of engagement with the rack, the operation is reliable and the reliability is high.

[0064] Claim 3 is rotatably mounted a pin <br/> anions to the tip of the first neck-vibration arm mounted pivotably about a output gear formic Amota, swinging around the output gear rotatably mounted a second neck-vibration arm intermediate gear to the tip of which is mounted for movement, the middle-gear the output gear and pin anion by the biasing means for rotating urging the second neck-vibration arm together are engaged between, since it is configured to move biases the pin anions in the engagement direction of the rack, even if forced loading disk tray manually, without take less load on the gears, durability Is high.

[Brief description of drawings]

FIG. 1 is a plan view of a loading state of an entire disc device for explaining a first embodiment of the disc device of the present invention.

FIG. 2 is a partially cutaway plan view of the same eject state.

FIG. 3 is a perspective view showing a gear motor of the first embodiment.

FIG. 4 is a plan view showing a disc tray locked state of the above gear motor.

FIG. 5 is a plan view for explaining the lock start of the above gear motor.

FIG. 6 is a plan view illustrating completion of unlocking of the gear motor of the above.

FIG. 7 is a plan view for explaining an emergency eject operation of the above gear motor.

FIG. 8 is a side view showing a gear motor according to a second embodiment.

FIG. 9 is a side view for explaining the start of the emergency eject operation of the above gear motor.

FIG. 10 is a side view for explaining the middle of the emergency eject operation of the above gear motor.

FIG. 11 is a side view illustrating the end of the emergency eject operation of the above gear motor.

[Explanation of symbols]

1 Disc 2 Disc Device Main Body 3 Disc Tray 7 Rack 7a Rack Locking Teeth 8 Slider (Emergency Ejection Means) 9 Extension Coil Spring (Biasing Means) 10 Gear Motor 11 Pinion 20 Emergency Ejection Spring 26 Output Gear 28 First Swing arm 29 Second swing arm 30 Intermediate gear 31 Torsion coil spring (biasing means)

Claims (3)

(57) [Claims] 1. A disc tray for loading and ejecting a recording and / or reproducing disc into and from a disc device main body, a rack provided on the disc tray and parallel to the loading direction and the eject direction, and the disc. device mounted within the body, a pinion configured to be freely engaged and disengaged with respect to said rack, mounted to the disk device body, a disk device and a gear motor for rotating the pinion
Oite, tooth lock at the loading position of the disc tray
Part is formed around the end of the rack on the eject direction side at a substantially right angle , and the gear motor and the pinion are mounted and slid.
The slider is installed, and the slider is moved in the direction in which the pinion engages with the rack.
An urging means for urging sliding is provided, and is formed on the slider and is provided outside the disk device.
Is operated by an operating means from above , the slider is moved up in order to disengage the pinion from the rack.
Emergency sage that slides against the urging means
A disk device having an eject operation unit . 2. A disc for recording and / or reproducing is recorded.
Loading and ejecting into the device body
The disc tray and the above-mentioned disc tray are installed to
And a rack parallel to the eject direction and the rack installed in the disk unit body.
A pinion configured to engage and disengage with respect to the
A disk drive equipped with a gear motor that drives the
Oite, tooth lock at the loading position of the disc tray
Part is formed around the end of the rack on the eject direction side at a substantially right angle, and the pinion rotatably driven by the gear motor is
Includes a swing arm that is rotatably attached and swings
Only, meshing side of the pinion of the above-mentioned neck vibration arm to the rack
An urging support means for urging and rotating in a direction is provided, and is formed on the swing arm and is provided outside the disk device.
Is operated by operating means from above , the swing arm is lifted in order to disengage the pinion from the rack.
Emergency sage that rotates against the biasing means
Disk drive having an eject operation section 3. The swing arm has the pinion at a tip thereof.
A first swing arm that is rotatably attached and is configured to swing around the output gear of the gear motor ;
The intermediate gear meshed with the output gear and the pinion is
Rotates freely mounted, is constituted by a second neck-vibration arm configured to swingably about said output gear, the intermediate gear by the biasing means for rotating urging the second neck-vibration arm The output gear and the pinion are meshed with each other, and the pinion is configured to be moved and biased in the meshing direction with the rack via the first swing arm, and the emergency eject operation unit is configured as described above. Second neck
It is formed on a swing arm, and the air from the outside of the disk device is
When the emergency eject operation unit is operated, the second
By rotating the swing arm, the intermediate gear
Is disengaged from the pinion, and
The arm is rotated and the pinion is removed from the rack.
Claim 2, characterized in that it is configured to be disengaged
The disk device described.